package com.v512;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.PrintStream;
import java.net.Socket;

public class Processor extends Thread {

	private Socket socket;
	
	private InputStream in;
	
	private PrintStream out;
	
	public final static String WEB_ROOT = "C:\\Users\\w\\Workspaces\\MyEclipse 10\\WebServer\\htdocs";
	
	@Override
	public void run() {
		String fileName = parse(in);
		try {
			out = new PrintStream(socket.getOutputStream());
			sendFile(fileName);
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}
	
	public Processor(){
		
	}
	
	public Processor(Socket socket){
		this.socket = socket;
		try {
			in = socket.getInputStream();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}

	public String parse(InputStream in) {
		BufferedReader br = new BufferedReader(new InputStreamReader(in));
		String fileName = null;
		try {
			String httpMessage = br.readLine();
			String[] content = httpMessage.split(" ");
			if(content.length == 3){
				System.out.println("code:" + content[0] + ",fileName:" + content[1] + ",http version:" + content[2]);
				fileName = content[1];
			}else {
				sendErrorMessage(400, "client query error!");
				return null;
			}
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		
		return fileName;
	}
	
	public void sendErrorMessage(int errorCode,String errorMessage){
		out.println("HTTP/1.0 " + errorCode + " " + errorMessage);
		out.println("content-type: text/html");
		out.println();
		out.println("<html>");
		out.println("<title>Error Message");
		out.println("</title>");
		out.println("<body>");
		out.println("<h1>ErrorCode:"+ errorCode +",Message:"+ errorMessage +"</h1>");
		out.println("</body>");
		out.println("</html>");
		out.flush();
		out.close();
		try {
			in.close();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}
	
	public void sendFile(String fileName){
		File file = new File(Processor.WEB_ROOT + fileName);
		if(!file.exists()){
			sendErrorMessage(404, "File Not Fount");
			return;
		}
		
		try {
			InputStream filein = new FileInputStream(file);
			byte[] content = new byte[(int)file.length()];
			filein.read(content);
			out.println("HTTP/1.0 200 queryfile");
			out.println("content-length:"+content.length);
			out.println();
			out.write(content);
			out.flush();
			out.close();
			filein.close();
		} catch (FileNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}

}
